Synchronization
Estrus Control - Progesterone - PGF2α
Ovulation Control
Gonadotropins +
Combinations of
Progesterone and PGF2α
Breeding season
Allows to use all
indicators separately or combined.
Synchronization
Non-breeding season
Impossible to use the indicators separately Progesterone is
obligatory
Synchronization
A Single PGF2α injection between 3-14. days of estrus or mid-luteal pahse.
Double blinde injection of PGF2α 9-11 days interval.
Synchronization
7 days int.
PGF2α 11-14 days Progesterone Sponge
11-14 days Progesterone Sponge 11-14 days Progesterone Sponge
9-11 days Progesterone Sponge
PGF2α
48 hours before
Synchronization
9-11 days Progesterone Sponge
PGF2α +
Gonadotropin 48 hours before
5-7 days Progesterone Sponge
PGF2α +
Gonadotropin
Gonadotropin Gonadotropin
PGF2α
5 days 2 days
Gonadotropin At around estrus
Hints to attent
• FSH is expensive and has short half-life.
• eCG and PMSG are cheap and have long half-life.
• The repeated usage of eCG and PMSG can cause decrease in answer given for synchronization and fertility, since they can cause to
development of antibodies.
• Since progestagens affect semen transport, long-term usage of progestagens can cause decrease in fertility.
• eCG and PMSG can cause early regression of CL or cystic follicles that failed to ovulate.
